Magento e-commerce is the most robust open source e-commerce product on the market today.
Magento has a very flexible framework that allows everything from simple widget sales to complex product builds. There is a basic Content Management System that will allow e-commerce driven sites to also have some basic content. It also has a newsletter component to drive more sales to the site.
One of the greatest features of Magento is its seasonal theming feature allowing the user to change the theme based on the time of year.
Give me a call and I will be happy to show you how Magento can help drive sales from your website.